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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/dev/ath/if_ath_lna_div.h
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/*-

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 * SPDX-License-Identifier: BSD-2-Clause

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 *

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 * Copyright (c) 2013 Adrian Chadd <[email protected]>

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 * All rights reserved.

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice, this list of conditions and the following disclaimer,

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 *    without modification.

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 * 2. Redistributions in binary form must reproduce at minimum a disclaimer

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 *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any

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 *    redistribution must be conditioned upon including a substantially

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 *    similar Disclaimer requirement for further binary redistribution.

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 *

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 * NO WARRANTY

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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

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 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

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 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY

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 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL

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 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,

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 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER

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 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF

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 * THE POSSIBILITY OF SUCH DAMAGES.

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 */

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#ifndef	__IF_ATH_LNA_DIV_H__

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#define	__IF_ATH_LNA_DIV_H__

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#define	ATH_ANT_RX_CURRENT_SHIFT		4

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#define	ATH_ANT_RX_MAIN_SHIFT			2

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#define	ATH_ANT_RX_MASK				0x3

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#define	ATH_ANT_DIV_COMB_SHORT_SCAN_INTR	50

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#define	ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT	0x100

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#define	ATH_ANT_DIV_COMB_MAX_PKTCOUNT		0x200

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#define	ATH_ANT_DIV_COMB_INIT_COUNT		95

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#define	ATH_ANT_DIV_COMB_MAX_COUNT		100

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#define	ATH_ANT_DIV_COMB_ALT_ANT_RATIO		30

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#define	ATH_ANT_DIV_COMB_ALT_ANT_RATIO2		20

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#define	ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA	-1

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#define	ATH_ANT_DIV_COMB_LNA1_DELTA_HI		-4

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#define	ATH_ANT_DIV_COMB_LNA1_DELTA_MID		-2

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#define	ATH_ANT_DIV_COMB_LNA1_DELTA_LOW		2

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struct if_ath_ant_comb_state {

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	uint16_t count;

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	uint16_t total_pkt_count;

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	HAL_BOOL scan;

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	HAL_BOOL scan_not_start;

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	int main_total_rssi;

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	int alt_total_rssi;

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	int alt_recv_cnt;

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	int main_recv_cnt;

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	int rssi_lna1;

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	int rssi_lna2;

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	int rssi_add;

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	int rssi_sub;

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	int rssi_first;

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	int rssi_second;

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	int rssi_third;

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	HAL_BOOL alt_good;

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	int quick_scan_cnt;

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	int main_conf;

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	HAL_ANT_DIV_COMB_LNA_CONF first_quick_scan_conf;

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	HAL_ANT_DIV_COMB_LNA_CONF second_quick_scan_conf;

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	int first_bias;

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	int second_bias;

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	HAL_BOOL first_ratio;

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	HAL_BOOL second_ratio;

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	unsigned long scan_start_time;

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	int lna1_lna2_delta;

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};

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extern	int ath_lna_div_attach(struct ath_softc *sc);

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extern	int ath_lna_div_detach(struct ath_softc *sc);

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extern	int ath_lna_div_ioctl(struct ath_softc *sc, struct ath_diag *ad);

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extern	int ath_lna_div_enable(struct ath_softc *sc,

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	    const struct ieee80211_channel *ch);

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extern	void ath_lna_rx_comb_scan(struct ath_softc *sc,

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	    struct ath_rx_status *rs, unsigned long ticks, int hz);

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#endif	/* __IF_ATH_LNA_DIV_H__ */

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